It's finally December - which means snow, Christmas cheer, and of course... ICONIC holiday tunes. I thought there was no better was to celebrate the start of the season than with a makeover for the ages - as the Grinch! Join me + my who-pal, Grace Helbig as we do a special Holiday edition of the Humming Challenge! Comment below with your FAVORITE Holiday song!

Watch the video we made on Grace's channel: https://youtu.be/v_CMMWCN5nQ